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Finding the Fourth Proportional to 321,953.35, 482,930.02 and 111,591.29

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Solution

The fourth proportional to 321,953.35, 482,930.02 and 111,591.29 is: 167,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,953.35 : 482,930.02 = 111,591.29 : x
  2. Step 2: Convert to fraction form
    321,953.35/482,930.02 = 111,591.29/x
  3. Step 3: Cross multiply
    321,953.35x = 482,930.02 × 111,591.29
  4. Step 4: Simplify right side
    321,953.35x = 53,890,782,855.71
  5. Step 5: Solve for x
    x = 53,890,782,855.71/321,953.35
  6. Step 6: Final answer
    x = 167,386.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.